When I get a lot of land (4)
I believe the answer is:
asia
'lot of land' is the definition.
(I've seen this in another clue)
'when i get a' is the wordplay.
'when' becomes 'as' (eg 'when I walked' means 'as I walked').
'get' is a charade indicator (letters next to each other).
'as'+'i'+'a'='ASIA'
(Other definitions for asia that I've seen before include "Put out" , "Populous continent" , "huge territory" , "Continent of the Hindu Kush" , "A great deal of land" .)